geoffreymendelson at gmail.com
Tue Jul 5 22:02:35 PDT 2011
On Jul 6, 2011, at 7:52 AM, Keith Hamilton wrote:
> Actually I am trying to reconcile the differences between the center
> frequency of the 500 Hz filter and the 250 Hz filter, both in the
> 6.3 mHz PB IF. The center frequencies should be the same -( 6.299250
> I think) regardless of the PBT control setting (11 or 1 o'clock) or
> the 9 mHz filter in use (I was using the 2.4 hz filter in the 9mhz
> IF at the time.) Since the center frequencies are not the same, (I
> must make a frequency adjustment to obtain maximum signal strength)
> I wanted to know if I can adjust the center frequency of my 250 hz
> filter or is the filter just too old and drifted. I would also like
> to know if others have experienced this discrepancy between two
> filters installed in their radio. Is it common for the older Ten Tec
> filters to go off frequency?
> Thanks! Keith W8GX
Do you have an RTTY (as opposed to CW) filter?
Geoffrey S. Mendelson, N3OWJ/4X1GM
Making your enemy reliant on software you support is the best revenge.
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